Combined condenser and receiver for refrigerator systems



H. W. KLEiST.

COMBINED CONDENSER AND RECEIVER FOR REFRIGERATOR SYSTEMS.

APPLICATION FILED AUG. 18. 1919.

1,359,460, I Patented Nov. 16, 1920.

IN VEN TOR.

Z/ ATTORNEY.

UNITED STATES P 'l'rlhl'l QFFECE...

HERMAN W. KLEIST, OF CHICAGO, ILLINGIS, ASSIGNOR .TO IDEAL REFRIGEBATING MACHINE COMPANY, OF CHICAGO, ILLINOI.

COMBINED CONDENSER AND RECEIVER FOB REFRIGERATOR SYSTEMS.

nesaaoo.

Specification of Letters latent.

Patented Nov. 16, 1920.

Application filed August 18, 1919. Serial No. 318,089.

T all whom it may concern:

Be it known that l, HERMAN W. Knnrsr, a citizen of the United States, anda residentof Chicago, Cook county, and State of Illinois, have invented certain new and useful Improvements in Combined Condensers and Receivers for Refrigerator Systems, of which the following is declared to be a full, clear, and exact description.

This invention relates to combined condensers and receivers for refrigerating s stems oi that type which employ a volatile fluid as, for instance, ammonia as the refrigerating medium. In refrigerating sys- 'tems of this type, the ammonia is circulated through the system by a suitable compressor, which exhausts the ammonia from the refrigerating coil in the refrigerating chamber, and forces it, under pressure, into a condensing coil where the ammonia is condensed and flows into a receiver in liquid form, from which it passes to an expansion valve, through which it is admitted'at a re duced pressure, to the refrigerating coil, into which it expands and its temperature lowers sufliciently for refrigerating purposes.

()ne of the principal objects of the present invention is to provide a combined condenser and receiver of simple and substantial construction, which may be built up in its main parts, of standard material such as .pipes and plates, and ordinary castings and fittings which may be constructed very cheaply. Another object is to provide a combined condenser and receiver, in which either member may be removed from the supporting frame for the purpose of repairs, or for any other reason. Another object is to provide simple means for trapping any oil that maybe conveyed, along with the ammonia, from the compressor, thereby effectively preventing any'ap'preciable quantity of oil .trom being carried on into the coils of the system. With these and other objects and advantages in view, this invention consists in the several novel features. of construction and arrangement of parts, hereinafter fully set forth and particularly definedin the claims. i The invention is clearly illustrated in the accompanying drawing, in which: v V

Figure 1 is a view, partly in vertical,longitudinal' section, and partly in side eleva tion, of a combined condenser and receiver, embodying a simple form of the present invention; V

Fig, 2 is a view, partly in cross section, and partly in end elevation, the section being taken on the line 2--2 of Fig. 1 and Fig. 3 is a detail, fragmental, horizontal section, taken on the broken line of 33 of Figs. 1 and 2.

Referring to said drawing, the reference c aracter A designates a condenser,'and B a receiver embodying a simple form of the present invention. The condenser is located directly above the receiver and both are supported by standards 7 which are arranged in pairs, one member of each pair being located on each side of the condenser and receiver. The standards 7 are formed with lugs or projections 8, 9, on their inner sides, which have inwardly curved faces or seats 10 that conform to and lit against the outer walls of the condenser and receiver. A tie rod 11 extends through and connects the standards of each pair and has nuts 12 threaded upon its ends which bear against away from the tank and extend in an ap proximately horizontal direction. An inlet pipe 18 is provided for the condensing coil and said inlet pipe extends through the head 15 and enters anoil trap 19 which is suspended in the shell 5 free from bhQfWZtllS thereof. The upper adjacent end 20 of the condensing coil, also opens into the oil trap 19.

Inits simplest form, the oil trap 19 may comprise an outer, vertical, tubular wall 22,

and an inner vertical, tubular wall 23, spaced away from the outer wall 22 and secured thereto at the top-and bottom by ringlike heads 24:. The inlet pipe 18 and end 20 of the condensing coil 17, open to the annular space 25, between the outer-and water tank 6.

inner walls 22, 23, near the upper end thereof, whereby the incoming ammonia gas is caused to travel around in the annular space, before passing to the condensing coil, thereby coming in. contact with the water cooled walls 22, 23. The arrangement of the parts is such that the incoming ammo nia gas and any oil carried thereby, im-

pinges against the inner water cooled wall 23; the mixture is thereby broken up, the oil is cooled and falls to the bottom of the annular space 25 in the trap. A. drain pipe 26 leads out from the annular space 25, of the trap, passes through the head 15, of the tank 5, and has a drain cock 27 upon its end, which may be opened occasionally to discharge the accumulated oil from the trap.

The discharge end 28 of the condensing coil 17 extends out through the head 16 of the tank 5, and is connected to an ammonia receiving tank 29 by a pipe 30, the pipes 28, 30 being connected by a coupling 31. The

receiver B comprises a water tank 6, consisting of a horizontal outer shell 32, the ends of which are closed by heads 83, and an ammonia receiving tank 29, which is located in the water tank, and is spaced away from the walls thereof. Conveniently, the ammonia receiving tank comprises a tubular shell 35 closed at the ends by heads 36, 37. As a preference, supporting lugs 38 may be provided on the inner "ace of the shell 32 in position to support the ammonia receiving tank in spaced relation to the The water is circulated through the water tanks of the condenser and receiver, which water may be conducted by pipes from any suitable source of water supply. The water inlet pipe 39 enters through the head 15 of the water tank 5, and a pipe 40 connects the upper end of the water tank 5 with the lower end of the water tank 6. A water discharge pipe 41 opens out from the upper end of the water tank 6.

The condenser and receiver may be assembled and coupled together with the pipes 28, 30, and 40 to form a unit, and if desired the other ends of condenser and receiver may be provided with over-lapping vertically slotted brackets 43, 44 connected by bolts and nuts 45. In assembling the condenser and receiver with the standards, the latter are placed against the sides of the condenser and receiver and clamped upon the condenser and receiver by the tie rods 11 and nuts 12. The coupling 31 and bracket connection .42, 43, 45. may be adjusted to properly position the, condenser and receiver in seats of the lugs 8, 9, of

the brackets. The shells and heads of the several tanks may be welded together, and

thelpipes may be welded to the-tanks to provide gas tight connections.

condensed by coming in contact with the cold Walls of the condensing coil. Any coil which enters with the ammonia gas, strikes against the. cold wall of the oil trap and falls to the bottom thereof. After the an monia gas is condensed, it flows into the re ceiving chamber29, where it is cooled by the water in the tank 6, and is discharged through the pipe 46 and conveyed to the expansion valve.

llore or less variation of the exact details of construction is possible without departing from the spirit of this invention; I desire, therefore, not to limit myself to the exact form of the construction shown and described, but intend, in the following claims, to point out all of the invention disclosed herein.

I claim as new and deslre to secure by Letters Patent 1. A combined condenser and receiver for refrigerating systems, comprising two water tanks, one located above the other,

an ammonia condensing coil submerged in refrigerating systems, comprising two water tanks, one located above the other and having a water plpe connection with each other, a horizontally disposed ammonia condensing coil submerged in water in the upper water tank, an ammonia receiving tank submerged 1n water 1n the lower tank 7 and connected with the lower end of said condensing coil, supporting brackets for said water tanks arranged in pa1rs and having sides engaging the sides of said water tanks, and means for clamping said brackets upon said water tanks.

8. In a combined condenser and receiver for refrigerating systems, a condenser, a receiver located there below, the one communicating with the other, supporting bracketsarranged in pairs and having sides bearingnagainstthe sides of the condenser and rece1ver,fand means for clamping Silld' brackets upon said condenser and receiver.

4. In a combined condenser and receiver for refrigerating systems, a cylindrical water tank, a tubularammonia condensing coil submerged in water therein, a second cylindrical water tank, a cylindrical ammonia tanksubmerged in water therein and connected to the lower end of said condensving. coil, there being a water passage between said water'tanks, supporting brackets having curved sides bearing against said water tanks, and means for clamping said brackets upon said water tanks.

5. The combination with a water tank and an ammonia condensing coil submerged in the water contained therein, of an ammonia and oil receiving chamber submerged in said water tank and having outer and inner walls exposed to the water, and a space there between forming a passage for ammonia and a receptacle for oil, there be ing an ammonia inlet pipe leading to said passage and the intake end of the condensing coil opening to said passage.

6. In a combined condenser and receiver 1 for refrigerating systems, the combination of two tubular water tanks, one arranged above the other, a condensing coil submerged in the water of the upper tank, a receiving tank submerged in the water of the lower tank and connected to the condensing coil, brackets having sides bearing against said water tanks, and tie rods for clamping said brackets upon the water tanks.

7. In a combined condenser and receiver for refrigerating systems, the combination with two water tanks, one located above the other, of an oil trap submerged in the water of the upper tank and having an annular chamber, the walls of which are exposed to the water, an ammonia inlet pipe and an ammonia condensing coil opening to the chamber of said oil trap, said ammonia condensing coil being submerged in the water of the upper water tank, a receiving tank submerged in the water of the lower water tank and connected to the condensing coil, and means for supportin said water tanks one above the other.

8. The combination of a water tank, an oil trap submerged in the water contained in the tank and having an outer and inner wall both exposed to the water and forming a chamber, an ammonia inlet pipe opening to said chamber and an ammonia outlet pipe discharging from said chamber, the bottom of said chamber forming a receptacle for the accumulation of oil.

9. The combination with a water tank, of an annular chamber submerged in the water of said tank, an ammonia inlet pipe opening to said chamber near the top thereof, and an ammonia discharge pipe opening to said chamber, the bottom of said chamber forming an oil receptacle.

10. The combination with a Water tank,

HERMAN W. KLEIST. 

